Overflow-fixture trap



(No Model.)

F. L. BROWN.

OVERFLOW FIXTURE TRAP.

No. 325,153. Patented Aug. 25, 1885.

llrrnn STATES PATENT @rrrcn.

FREDERICK L. BROW'N, OF SCH-ANTON, PENNSYLVANIA.

OVERFLOW-FIXTURE TRAP.

SPECIFICATION forming part of Letters Patent No 325,153, dated August 25, 1885.

Application filed June 1585.

T0 @155 whom it may concern:

Be it known that I, FREDERICK L. BROWN, of Scranton, in the county of Lackawanna and State of Pennsylvania, have invented certain new and useful Improvements in Overflow-Fixture Traps; and I do hereby declare that the following a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon,which form part of this specification, in which- Figure 1 represents a plan view of the inven tion detached; Fig. 2, a vertical longitudinal section of the same on line :0 as, Fig. 1; Fig. 3, a view of the invention secured to the end of a bath-tub, and Fig. -l a view of the same secured to a basin fixed to a support.

This invention relates to improvements in traps for the dischargepipes of basins, bathtubs, and other ove1'fiow-fixtures,and its main object is to prevent the escape of foul gases through the overflow-pipe of the same,the device being so constructed as to trap both the discharge-pipefrom the bath-tub or other fixture and the overflow'pipe 01' the same, as is hereinafter explained, and pointed out in the appended claims.

Referring to the accompanying drawings by letter, X, Fig. 3, designates the floor of the apartment, in which is made an opening, X, for the purpose of conveniently removing the cap of the device.

Y is the bat-h-tub,having the discharge-pipe F connected with its end in the ordinary man ner. The discharge-pipe connects with the vertical cylinder B of the trap at the lower end ofthe latter, the opening between the two having the same area as the interior of the pipe.

A is a screw-cap engaging and closing the open upper threaded end, a, of the cylinder B of the trap, and having upon its upper surface an angular projection, a, by means of which it may be unscrewed from the cylinder when necessary. The said cap is accessible through the opening X in the floor, which opening may be covered by a removable lid.

E is a rod depending from the center of the cap A, and having secured to its lower end the curved strainer D, arranged with its con cavity downward.

H is the overflow-pipe rising from the dis- (Xo model.)

charge-pipe F, and opening at its upper end into the tub at a proper point, as shown.

1 is the discharging waste-pipe from the trapcylinder B, the said waste-pipe running outfrom the cylinder at a point sufficiently above the strainer D.

O is a ball, made preferably of rubber, and slightly larger in diameter than the width of the opening of the discharge-pipe F into the lower end of the cylinder B. Said ball is provided internally with a weight,O, sufiiciently heavy to keep it in place at the lower part of the cylinder B, so that it will effectively close the communication between the discharge-pipe F and the trap-cylinder under any back-pressure from the latter.

Fig. 4 shows the invention, as describetha tached to a fixed basin in a washroom, the basin being secured to a washing-stand, the arrangement of parts is the same, the pipe I being the common discharge-pipe.

The operation of the invention is as follows: The water escaping through the discharge-pipe F rises both in the cylinder of the trap and in the overflow-pipe I-I, effectively trapping both, so that no foul gas can escape through the latter, also preventing a circulation through the discharge and overflow pipes above the trap.

The ball C isjust sufficiently heavy to allow the water mixed with the discharged matter to flow easily from the dischargepipe F into the trap, but is sufficient-ly heavy to stop the communication from said pipe under any backpressure from the trap.

The strainer D prevents the ball 0 from rising so as to obstruct the mouth of the wastepipe I, and at the same time it retains any waste material, such as threads of cloth or hair, in the cylinder B of trap, from which the said material can be readily removed by removing screw-cap A therefrom, the said cap being easily accessible from the floor, as heretofore explained.

Having described my invention, I clai1n.,

1.. A trap forbathtubs and other overflowfixtures, composed of a vertical cylinder havi ng a waste-pipe opening from a point near its upper end and a discharge-pipe from the tub opening into its lower end, an overflow-pipe from the tub openinginto said discharge-pipe near the cylinder, a spherical valve adapted to close by gravity the entrance of the discharge-pipe into the cylinder, and a concave strainer secured to a rod depending from the induction-pipe into the cylinder, the screwcap A, having a proper wrench-hold on its outer side, and the concave strainer D,secure(l to the rod E, depending from the center of the screw-cap and fitting closely within the cylinder, substantially as set forth.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

FREDERICK L. BROWN.

Witnesses.

H. W. EDWARDS, C. CoMnGYs. 

